During the 1970s and 1990s, there was an epistemological shift away from the positivist traditions that had largely informed the discipline.

During the post-World War I period ski-lifts were built in Swiss and Austrian towns to accommodate winter visitors, but summer tourism continued to be important ; by the mid-20th century the popularity of downhill skiing increased greatly as it became more accessible and in the 1970s several new villages were built in France devoted almost exclusively to skiing, such a Les Menuires.

During the 1960s and 1970s, the city gained a reputation as a center for liberal politics.

During the 1960s and 1970s, the city gained a reputation as an important center for liberal politics.

During much of the 1970s Roma's appearance in the top half of Serie A was sporadic.

During their heyday from the late 1970s to the mid-1990s, most BBSes were run as a hobby free of charge by the system operator ( or " SysOp "), while other BBSes charged their users a subscription fee for access, or were operated by a business as a means of supporting their customers.

During the 1970s the Air Force was at the apogee of its power, possessing at least 500 modern combat aircraft in its inventory.

During the early 1970s, Manchester United were no longer competing among the top teams in England, and at several stages were battling against relegation.

During the Orioles ' heyday in the 1970s, a club song, appropriately titled " Orioles Magic ", was composed, and played when the team ran out until Opening Day of 2008.

During the late 1970s and early 1980s, the site hosted Creative Time's landmark Art on the Beach sculpture exhibitions.

During the 1970s, he made guest-appearances on TV series such as Ironside, Insight, Barbary Coast, The Love Boat, Medical Center, four episodes of Love, American Style, Fantasy Island, and two episodes each of The Streets of San Francisco, and Rod Serling's Night Gallery.

" During the 1970s, widely different methods began to be seen as part of a new emerging discipline of computational chemistry.

During the 1970s the " small press " culture grew and diversified.

During the 1970s and 1980s it was also used to test the ability of containers of radioactive material to withstand impacts and other accidents.

During the 1970s and 1980s, the Bengals were a perennial playoff contender and they won AFC championships in and, but lost Super Bowls XVI and XXIII to the San Francisco 49ers.

During the 1960s and 1970s, the CPC experienced a significant ideological breakdown with the Communist Party of the Soviet Union under Nikita Khrushchev, and later, Leonid Brezhnev.

During the 1970s the relative number of communists in Republics of the Soviet Union was as follows:

During the 1970s, a growing number of Canadian stations pushed American channels off the systems, forcing several to expand beyond the original 12-channel system configurations.

During the 1970s producers started to reduce the quantity of white grapes in Chianti.

During the 1970s, modern dramatic directors made some of their first films.

During the Portuguese Colonial War in the 1960s and the 1970s, the Portuguese Army created an experimental horse platoon, to combat the guerrillas in eastern Angola.

During the late 1970s he acquired a large public audience as a critic of the then Labour government's disregard of civil liberties ; his writings from this time are collected in Writing By Candlelight ( 1980 ).

During the 1950s, 1960s and 1970s, several events occurred which raised the public awareness of harm to the environment caused by man.

During the 1960s and 1970s hundreds of fossils were found, particularly in East Africa in the regions of the Olduvai gorge and Lake Turkana.

During the 1970s and ' 80s, Cassandra B. Whyte did significant educational research studying locus of control as related to the academic achievement of students pursuing higher education coursework.

During the same period a movement with similar aims had also developed in France under the direction of Eugène Viollet-le-Duc a French architect and theorist, famous for his " restorations " of medieval buildings.

During pregnancy, the cervix is blocked by a special antibacterial mucosal plug, which prevents infection, somewhat similar to its state during the infertile portion of the menstrual cycle.

During the next decade, Palestrina held positions similar to his Julian Chapel appointment at other chapels and churches in Rome, notably St John Lateran, ( 1555 – 1560 – a post previously held by Lassus ) and Sta Maria Maggiore ( 1561 – 1566 ).

During the last two decades, Italy underwent a devolution process, that eventually led to the creation of administrative metropolitan areas, in order to give major cities and their metropolitan areas a provincial status ( somehow similar to PRC's direct-controlled municipality ).

During surveys carried out between 1997 and 2001, a spot was found along the Mariana Trench that had depth similar to that of the Challenger Deep, possibly even deeper.

During this time, small firms with little market share consolidated with similar firms to form large, powerful institutions that dominated their markets.

During the 19th and 20th century, many national political parties organized themselves into international organizations along similar policy lines.

During the second half of the 19th century, the armies of a number of nations besides Russia ( including Colombia, Chile, Mexico, Portugal, Norway, and Sweden ) adopted the Pickelhaube or something very similar.

During the last ice age, the basin now filled by the bay was a large linear valley with small hills, similar to most of the valleys of the Coast Ranges.

During a visit to Australia in 1958, a similar special was made for the Australian Broadcasting Commission, " The Gladys Half-Hour ", which also featured local actors Ray Barrett, and John Bluthal, who would appear in several later Milligan projects.

During the 3rd century AD, although the pilum continued to be used, legionaries usually were equipped with other forms of throwing and thrusting spear, similar to auxilia of the previous century.

During the American Civil War, the term torpedo was used for what is today called a contact mine, floating on or below the water surface using an air-filled demijohn or similar flotation device.

** During the First World War, Germany also had this submarine with a similar name:

** During the First World War, Germany also had these submarines with similar names:

During the Song Dynasty, similar stories circulated as the contents of prompt-books for storytellers.

** During the First World War, Germany also had these submarines with similar names:

During their first secessio ( similar to a general strike ), they withdrew from the city and threatened to found their own.

During the etching process the printmaker uses a bird feather or similar item to wave away bubbles and detritus produced by the dissolving process, from the surface of the plate, or the plate may be periodically lifted from the acid bath.

During World War II, the Nazis attempted to establish a puppet Belarusian government, Belarusian Central Rada, with the symbolics similar to BNR.

During the early Silurian, they developed specialized cells, which were lignified ( or bore similar chemical compounds ) to avoid implosion ; this process coincided with cell death, allowing their innards to be emptied and water to be passed through them.

During his monologue, he did a musical bit with James Belushi that was similar to the Blues Brothers, but neither Aykroyd nor Belushi donned the famous black suit and sunglasses.

During his year as prefect, he began a major reconstruction of the city, similar to what he would later do in Paris.

During the 1970s Cook and Moore used a similar formula for the more adult Derek and Clive recordings.

During this year, Haley — without the Comets — recorded a pair of demos in Phoenix, Arizona: a country-western song called " Jealous Heart " for which he was backed by a local mariachi band ( and similar in style to the earlier " Jimmy Martinez ", and late-60s-style rocker called " Rock on Baby " backed by a group called Superfine Dandelion.

During a July 6, 2005 concert at the Viper Room in West Hollywood, The Comets were joined on stage for one song by Gina Haley, the youngest daughter of Bill Haley ; at a similar appearance in March they were joined by Haley's eldest son, John W. Haley.